Begin by chopping the watermelon into bite-sized cubes and placing them in a large mixing bowl, ensuring they are evenly spread out for easy mixing.
Sprinkle the crumbled feta cheese over the watermelon, distributing it evenly to create a salty, tangy contrast.
Chop the fresh mint leaves roughly and sprinkle them over the salad, adding a bright, aromatic touch.
Squeeze the lemon juice over the mixture, then drizzle the olive oil on top to tie the flavors together and add a slight richness.
Gently toss everything together using a large spoon, being careful not to crush the watermelon. The mixture should be evenly coated and fragrant.
Finish by cracking some fresh black pepper over the salad and adding a light drizzle of balsamic glaze if desired for extra flavor complexity.
Transfer the salad to a serving plate or bowl and serve immediately, enjoying the vibrant colors and refreshing flavors in every bite.